Abstract：
:The ambient geomagnetic field influences a variety of biological phenomena. Electrical and biochemical parameters of the rodent pineal gland are influenced by the alteration of weak magnetic fields (MF), the magnetic receptor probably residing in the retina. However, open questions concern the role of retinal pigmentation as well as species- and sex-specific differences in MF perception. We therefore exposed male and female naturally pigmented and albino Mongolian gerbils, as well as Sprague-Dawley (SD) rats to a 60 degrees rotation of the horizontal component of the ambient MF. Alteration of nocturnal pineal melatonin content and N-acetyltransferase (NAT) activity were utilized as a parameter for assessing magneto-sensitivity. In pigmented gerbils, MF exposure resulted in no significant changes in pineal melatonin synthesis. In contrast, albino gerbils and SD rats exhibited--regardless of sex--significant decreases in pineal NAT activity and melatonin content following MF exposure. These results suggest that in rodents hypopigmentation appears to favor magnetoperception. The available evidence indicates that the pigmentation of the retina could play a crucial role.
journal_name
Physiol Behavjournal_title
Physiology & behaviorauthors
Stehle J,Reuss S,Schröder H,Henschel M,Vollrath Ldoi
10.1016/0031-9384(88)90350-2subject
Has Abstractpub_date
1988-01-01 00:00:00pages
91-4issue
1eissn
0031-9384issn
1873-507Xpii
0031-9384(88)90350-2journal_volume
44pub_type
杂志文章abstract：:We review a growing body of medical and physiological evidence indicating that yawning may be a thermoregulatory mechanism, providing compensatory cooling when other provisions fail to operate favorably. Conditions such as multiple sclerosis, migraine headaches, epilepsy, stress and anxiety, and schizophrenia have all...
journal_title：Physiology & behavior
pub_type： 杂志文章,评审
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journal_title：Physiology & behavior
pub_type： 杂志文章,评审
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pub_type： 杂志文章
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pub_type： 杂志文章,随机对照试验
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journal_title：Physiology & behavior
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更新日期：1983-07-01 00:00:00
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更新日期：1988-01-01 00:00:00
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journal_title：Physiology & behavior
pub_type： 杂志文章
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更新日期：2013-02-17 00:00:00
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更新日期：2015-10-01 00:00:00
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journal_title：Physiology & behavior
pub_type： 杂志文章
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更新日期：2017-06-01 00:00:00
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journal_title：Physiology & behavior
pub_type： 杂志文章
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更新日期：2006-02-28 00:00:00
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pub_type： 杂志文章,随机对照试验
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更新日期：2012-03-20 00:00:00
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pub_type： 杂志文章
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更新日期：1993-08-01 00:00:00
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journal_title：Physiology & behavior
pub_type： 杂志文章
doi：10.1016/0031-9384(92)90158-x
更新日期：1992-02-01 00:00:00
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journal_title：Physiology & behavior
pub_type： 杂志文章,评审
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pub_type： 杂志文章
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journal_title：Physiology & behavior
pub_type： 杂志文章
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更新日期：1995-11-01 00:00:00
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更新日期：2011-02-01 00:00:00
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更新日期：1987-01-01 00:00:00
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pub_type： 杂志文章
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更新日期：2007-06-08 00:00:00
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pub_type： 杂志文章
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更新日期：1990-10-01 00:00:00
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